butyl N-[5-[[5-[3-[3-[3,5-bis[5-[[3-(butoxycarbonylamino)-4-methylphenyl]iminomethylideneamino]-2-methylphenyl]-6-hydroxy-2,4-dioxopyrimidin-1-yl]-4-methylphenyl]-5-[3-[[3-(butoxycarbonylamino)-4-methylphenyl]iminomethylideneamino]-4-methylphenyl]-2,4,6-trioxo-1,3,5-triazinan-1-yl]-2-methylphenyl]iminomethylideneamino]-2-methylphenyl]carbamate